Extrinsic 76663-1

{
  "heartbeat": {
    "blockNumber": 76662,
    "sessionIndex": 1277,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb0b49484b3cf4aa2d608a717f84df0f703834414c18c68192de0ecf46b00331bda256e28783f73a0ddab3efbda4e0f31549c9d6e1496105a5220152751feb58b"
}